In mathematics and computing, hexadecimal (also base 16, or hex) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a, b, c, d, e, f) to represent values ten to fifteen.
conversion table
| hexadecimal (base 16) | duodecimal (base 12) | hexadecimal (base 16) | duodecimal (base 12) |
|---|
| 1 | ≈ 1 | b | ≈ b |
| 2 | ≈ 2 | c | ≈ 10 |
| 3 | ≈ 3 | d | ≈ 11 |
| 4 | ≈ 4 | e | ≈ 12 |
| 5 | ≈ 5 | f | ≈ 13 |
| 6 | ≈ 6 | 10 | ≈ 14 |
| 7 | ≈ 7 | 11 | ≈ 15 |
| 8 | ≈ 8 | 12 | ≈ 16 |
| 9 | ≈ 9 | 13 | ≈ 17 |
| a | ≈ a | 14 | ≈ 18 |